feat(v3-preset): add v3 preset

[ElijahKotyluk]

V3 alpha preset

Install Vuetify 3-alpha

If you haven't yet installed vue-cli 4, first follow the install instructions here: https://github.com/vuejs/vue-cli

Generate a project using vue-cli 4.0:

vue create my-app

When prompted, choose Vue 3 Preview:

? Please pick a preset: 
   Default ([Vue 2] babel, eslint) 
❯  Default (Vue 3 Preview) ([Vue 3] babel, eslint) 
   Manually select features 

Before installing the vuetify plugin, make sure to commit or stash your changes in case you need to revert the changes.

To install the vuetify plugin simply navigate to your application folder and add Vuetify.

cd my-app

vue add vuetify

Once prompted, choose V3 (alpha):

? Choose a preset: (Use arrow keys)
  Default (recommended) 
  Prototype (rapid development) 
  Configure (advanced) 
> V3 (alpha)

If you run into any issues, reach out to us in our Discord Community server.

[KaelWD]

The template needs to change too.

[ElijahKotyluk]

Looking for some feedback, let me know if I'm missing a dependency or have something wrong. I'll get the Vue template files filled out by tomorrow.